Lifting anti-swing device of crane

The utility model discloses a lifting anti-swing device of a crane, which comprises an electric hoist and an anti-swing box, and further comprises an anti-swing structure for greatly reducing the swing amplitude, an alarm structure for conveniently realizing automatic alarm when the swing amplitude is too large, and a wiping structure for reducing sundries on the surface of a rope, a winding drum is arranged in the middle of the interior of the electric hoist, a steel wire rope penetrating through the electric hoist is arranged on the outer wall of the winding drum, the anti-swing structures are installed in the middles of the lower ends of the two sides of the electric hoist, and the alarm structures are installed on the periphery of the bottom end of the interior of the electric hoist. The servo motor works to drive the wire wheel to rotate so as to wind and straighten the pull rope, the top end and the bottom end in the wire passing groove are both arc-shaped so that the pull rope can be conveniently wound